65 cuda 273 upper starter bolt

I ran it in with finger power far enough to be sure it was the right thread. A prev owner must have swapped the bolt out for one with 11/16 hex. I would pull the starter to make sure all is well but it looks difficult on this 273 PS car. Anyway, tight for now.

Are you running the original starter? I love the sound of it, but it's big!! I went with a mini stater about 6 years ago.